The prevalence and correlated risk factors of arrhythmia in patients with chronic systolic heart failure

Objective To investigate the prevalence of arrhythmia in patients with chronic systolic heart failure (CSHF) in Hubei province and analyse the correlation between atrial fibrillation (AF), premature ventricular contracts (PVCs), ventricular tachycardia (VT) and age, NYHA heart function classification, left ventricular ejection fraction (LVEF), aetiology, respectively. Methods Data of in-hospital patients with CSHF were investigated between 2000 and 2010 from 12 hospitals in Hubei Province. Univariate and multivariate logistic proportional hazard analysis were performed to determinate the relationships between AF, PVCs, VT and age, NYHA heart function classification, LVEF, aetiology, respectively. Results (1) PVCs, AF, atrial tachycardia and VT are the common arrhythmia in patients with CSHF which account 68.30%, 40.81%, 21.16% and 14.50%, respectively. (2) The HRs (95% CI) of AF for patients in 40–50, 50–60, 60–70, 70–80 and ≥80 age were 1.670 (1.237 to 2.253, p